Aquiline Capital Partners has added two investment professionals—the private equity firm’s third and fourth hires in the past month—as it continues to build its team of financial services industry specialists.

Deborah Bernstein and Jason Rotman each have about 15 years of financial services experience, according to a statement.

Rotman was most recently head of alternative investments for the United States at Swiss Reinsurance Company.

Jeff Greenberg, chief executive of Aquiline, said: “We have known both Deborah and Jason for some time and are familiar with their work. They each bring important strengths that will deepen Aquiline’s capabilities.”

Bringing on Bernstein and Rotman comes on the heels of last week’s hiring of Mark Graf, who was a partner in the financial services of Barrett Ellman Stoddard Capital Partners.